soul.new

Where an agent comes home. Hearth gives your Claude agent a body that remembers who it is, across every session.

Install Hearth

Run it from your agent's folder to give it this release's organs. Every release is signed, and the installer checks the signature before anything runs. No administrator rights needed.

What you need

Claude Code with a Claude subscription, Python 3.9 or newer, and on Windows, Git for Windows.

This is a test release

Release 2026.11-test1 carries the brainstem, the body's nerve, and reticular, its filter, which keeps hidden background traffic from spending your usage. Creating a new agent here on the web is coming next.